Machine for use in the manufacture of footwear



April 22, 1952 J. WEBER ET AL MACHINE FOR USE IN THE MANUFACTURE OF FOOTWEAR 22, 1949 Filed Nov.

6 Sheets-Sheet l es h 35B 84;, w 8o 28 I 6683 t: EFT/.Q

Hull r"l ulhurll E- 1" mi 'h /slf I 'LPL /32 73 I" Ip b C),

| l I -ll /25 l L i l -1 l /33 I 721// S /35 @I u nuentors l ,1`mv- Jock Weber E omas Parklnson Chornley 75 76 iA Agens April 22, 1952 J. WEBER rs1-Al.V

MACHINE FOR USE IN THE MANUFACTURE OF' FOOTWEAR 6 Sheets-Sheet 2 Filed NOV. 22, 1949 April 22, 1952 J. WEBER ETAL MACHINE FOR USE IN THE MANUFACTURE OF' FOOTWEAR Filed NOV. 22, 1949 6 Sheets-Sheet 3 Agents April 22, 1952 J'. WEBER ETAL 2,593,945

MACHINE FOR USE IN THE MANUFACTURE OF' FOOTWEAR Filed Nov. 22, 1949 6 Sheets-Sheet 4 Inventors Jack 'Webs r omosParklnson Gholrnley cewye Agents April 22, 1952 J. WEBER ET AL 2,593,945

MACHINE FOR USE IN THE MANUFACTURE OF FOOTWEAR Filed Nov. 22, 1949 6 SheetSSheet 5 g? l I 5 nvenlora Jack Weber Thomas Parkinson Gharnley i Agens April 22, 1952 J. WEBER ET AL 2,593,945

MACHINE FOR USE IN THE MANUFACTURE OF' FOOTWEAR Filed NOV. 22, 1949 F/GB 6 Sheets-Sheet 6 Inventors Jack Weber Parkinson Ghornley Agents the fluid operated means for Patented Apr. 22, 1952 MACHINE FOR USE IN THE MANU- FACTURE F FOOTWEAR Jack Weber and Thomas Parkinson Charnley,

Tottenham, London,

England Application November 22, 1949, Serial No. 128,694

' In Great Britain December 17, 1948 17 Claims.

This invention concerns anew or. improved machine for use in the manufacture of footwear such as boots, shoes, slippers and sandals; all of which, inclusive of similar articles of footwear, will hereinafter be referred to,` for the sake of brevity, inclusively as shoes More particularly the invention is concerned with amachine which will facilitate the carrying out ,inA succession of a series of manufacturing operations or processing steps in the manufacture .cfa shoe, for instance, the applying thereto successively of a through-sole and a heel with the intermediate operations of bufiing, scouring, the application of adhesive, and the iinal trimming of the applied sole and heel.

According to this invention there is provided ap machine for use inthe manufacture of shoes, such machine comprising a plurality of mutually spaced lasts each adapted to receive a shoe to be operated upon, said lasts each comprising at "least two relatively movable parts so that each last is expansible inthe direction of its length whereby it can be adapted to fit shoes of varying sizeswithin a predetermined range of sizes, fluid pressure operated means for traversing said lasts successively from and then back to a loading station, duid pressure operated means for automatically expanding each last in turn after the loading thereof to adjust the length of the last to suit the size of shoe placed thereon, and means for automatically contracting each of said lasts as it returns to said loading station, whereby-the shoe on the last may be removed therefrom.

According to a further feature of the invention I'the said lasts are carried by a travelling support adapted to move the lasts in steps through a closed circuit and preferably the said travelling support is in the form of a rotary table adapted to be rotationally advanced step by step, the lasts being arranged at equi-angularly spaced inter- 'vals around the axis of rotation of the table.

According to a further feature of the invention automatically eX- panding the lasts may comprise a piston and cylinder associated with each last for independently controlling the same.

According to a further feature of the invention automatically operating means may be provided for controlling the expansion of the lasts, such means being adapted to regulate the supply of Ipressure iiuid to the iiuid pressure operated means, e. g. the said pistons and cylinders, for expanding the lasts.

The said automatically operating last expansion controlling means may comprise a rotary valye,

in its travel cycle.

2 part of which rotates with the said table relatively to the other part which may be stationary, the said rotary valve being provided with passages and ports adapted to co-operate for supplying the required lasts with the pressure for expanding the lasts, and maintaining the same expanded, respectively at and over the required position and portion of the cycle of movement of the lasts.

According to a further feature of the invention means may be provided for automatically contracting each last at an appropriate position Preferably the said last contraction means will be arranged to operate at a position spaced from the said loading station and serving asa last unlocking station so that each last is contracted on the Way back to the loading station prior to reaching the latter.

According to a still further feature of the invention means may be provided for temporarily locking each last in a stationary condition at the end of each step in its movement, and forsthen releasing the last for further movement and. preferably the said locking and releasing-of the lasts is effected automatically by fluid pressure operated means. l

According to a further feature of the invention the said fiuid pressure operated means for locking each last in a stationary condition may comprise a bolt adapted for periodic co-operation with the said rotary table carrying the lasts to lock the table, and consequently the lasts, in the stationary position with a last at the loading station.

According to a further feature ofthe invention the said table may be advanced step by step with respect to the loading station through the medium of a one-way driving member operated from a iluid pressure responsive piston.

According to a still further feature of the invention the said driving means for the table may be so inter-related with the uid pressure operating means for the table locking mechanism that the said driving means only act to advance the lasts after the latter have been released from the effect of the said locking means, the driving means ceasing to "operate to advance the lasts prior to the latter being relocked by the said lock-v ing means.

According to a still further feature of the invention the machine may be furnished with one or more processing stations to which the said lasts are adapted to be brought in turn and at which one or more manufacturing operations may be carried out on the shoes on the said lasts, said processing station or stations being so disposed that, when a last is located at the said loading station, a further last (with a shoe thereon) will be located at the said processing station or at each of such stations,

According to another feature of the invention fluid pressure operated or controlled processing means e. g. a pressure pad, may be provided at the said processing ,station or at :each of the said processing stations for effecting ythe said manufacturing operation or operations on a shoe o1' shoes, and means may processing means is or are automatically brought into operation each time the said travelling support or table comes to rest and whereby said processing means may be taken out of operation at the end of any processing step.

According to a still further feature of the invention the fluid pressure operating means for the said processing means may be so interrelated with the fluid pressure operating means for the last locking mechanism that the said processing means are automatically brought into action when the lasts have been locked against fur-ther advance but moved out of action before vthe lasts are released for further advancement.

The arrangement is .preferably such that the hextent fof the'expansion of each of the said lasts is rdetermined by the size ofthe shoe 'placed thereon.

Although the said processing :m'eansmay comprise 'av pressurepad, which lmay vbe inflatable, it

"will be 'understood that the processing Vmeans "may be of other forms for example a scouring wheel driven by an .electric motor and, whatever the l.form of the processing means, they are, according to 'this invention, preferably 4brought into an operating position with respect to a shoe on a lastlby means of fluid pressure actuated mechanism. Thus, for example, the processing means maybe :carried upon `a pistonrod of a. fluid oper According to a further feature of the invention an v:automatic control is provided 'by which all the various `movements, of the machine are regulated in synchronism.

The pressure fluid employed for operating the various Vparts of the machine may be a pneumatic or 4a hydraulic fluid. Preferably, however, a pneumatic fluid is used and hereinafter the invention .willzbe described as applied toa machine which is operated pneumatically; it will, however, be understood that relativ-ely minor modi caltions only would be required 'to make such a machine operable hydraulically.

Further features of the .invention will become :apparent from the following particular description Vand claims.

be provided whereby such In order that the natureof ythe invention mai7 ,be more readily understood and carried into practice, one embodiment of the same will now be described by way of example with reference to ,the vaccompanying drawings in which:

Figure 1 is a part sectional front elevation 4of 4a 'pneumatically operated .machine for use in the manufacture of shoes, the machine being lconstructed in accordance with this invention Aand the figure .showing only a portion of the rotary table of the machine;

Figure 2 is a part sectional plan of themachine :shown in Figure 1, a portion of the table being omittedin this ligure;

Figure 3 is a vertical section on line III-III, .Figure A1;

Figure L4 visa horizontal Ysection on line IV-IV, Figure 1; the view being an underneath view of lthe table of the machine;

its lower part.

shown in Figures 3 and f4 for example.

Figure 5 is an enlarged ver-tical section through the centre of the table and its mounting;

Figure 6 is a sectional plan on line VIe-Vl, Figure 5;

Figure 7 is a side elevation of one of the proeessing stations looking in the direction of arrow lh-Figure2;and 1- Figure@i isa diagrammatical view-of the apparatus showing the pneumatic circuit.

The machine illustrated in thedrawings is -pneumatically operated. Itcomprises a central hollow pedestal i which is conveniently of rectangularform in plan and splays` outwardly at At its upper end the pedestal carries a central bracket 2 (Fig-5) having a .central tubular boss A3 whose axis'fis vertical and in `wllich is fixed the. lower end of a cylindrical pivot post 4. -f

'Upon the upper part of thefpivot posti. is rotatably mounted the central boss 5 of a circular rotary table generally indicated by the reference 5. This `table is in the form of a wheel comprising .a plurality of spokes 'I' ixed at their inner ends to the upper surface of a drum 8 secured to or formed integrally with the boss 5 of the table, the drum 8 being coaxial with the boss 5 and having a dependent peripheral flange 9. The spokes 'I are formed of inverted T-girders and are spaced (see Eig. 4) equiangularly"around the axis of the boss 5 and have-their outer ends secured to an outer ring IU of angle section, the flange II of this ring being at the undersideof the .ring and extending inwardly Vas is `clearlyr The spokes I are also braced by an'intermediate ring' I2 (Figure 4).

The wheel formed by the spokes l and the rings lI and I2 is covered or'its A,upper sideby a circular metal plate |20. l(seeigure 3) Upon which `is co-axially xed a further and larger circular plate I3 conveniently formed 'in two halves; the plate I2a is secured to thevrim II vand spokes 'I in any suitable wayas, for-example, by welding whilst the pla-te I3 may be screwed to the plate I2a.

The drum 8 is much less in diameter than .the rotary table B and the latter vis adapted to be driven intermittently through the medium of a one-way driving mechanism acting on the fiange S of the drum 8 and comprising a horizontal arcuate driving arm I4 (Figures 1 2, 4, 5 vand 8) The arm I4 is guidedly supported upon the pedestal 'I and is furnished at one endvwith a pair of vertically spaced pins or dogs I5 and IS which may be furnished with rollers (suchas the roller l1 shown on the -pin It), the pins or dogs I5 and I6 being arranged respectively on the inside and on the outside of the `peripheral flange y9 of the drum 8.

When, in making its driving stroke, ythe arm i4 is moved (in the direction of the arrow on the arm in Figure 2) about the axis `of rotation of the table 6, the pins or dogs I5 land I6 on the arm I4 are adapt-ed to grip-:the rflange 9 of the Ydrum 8 between Vthem -sothatl vthe drum and the table 6 will be `,carried around with Ythe arm I4. However, when the arrn `I4 is moved in the opposite direction to that'indicated 'by the vsaid arrow, it will travel alonewithout the table '5.

The driving arm I4 is fioatingly mounted on the pedestal I and has its end I8 (remote from thepins or dogs I5 and IB) connected to one end its axis parallel to the upper surface of this table, the end ofthe cylinder 2| remote from that from which the piston rod |9 projectsV being pivotally connected at 22 to a bracket 23 fixed to the pedestal Thus the cylinder 2| and the parts associated therewith are pivotal about the vertical axis of the pivot 22 to accommodate the rotational movement of the driving arm I4 about the axis f the table 6.

The cylinder 2| is a double-acting one and compressed air is supplied as required to its opposite ends respectively by air lines 24 and 25 which arealternatively placed in communication with the air supply lines and the atmosphere via a valve chest 26 having a reciprocable double ended control valve 2'| adapted alternately to cut oi the supply of compressed air to one of the lines 24, 25 and to supply the other of these lines withcompressed air whilst at the same time placing the line 24 or 25 to which the air supply has been cut on in communication with an appropriate exhaust passage 24' or 25' in the valve chest 26.

When pressure is supplied to the pivoted end of the cylinder 2| the driving piston 20 is forced outwardly and causes the driving arm |4 first to pivot about the pin or dog I5 which bears on the inside of the flange 9 of the drum 8. This movel ment of the arm causes the pin or dog I6 to grip i the outer periphery of the flange 3 and thereafter 1,

further outward movement of the piston causes the driving arm |4 to move bodily in a clockwise direction about the axis of the table 6 (as the latter is seen in Figures 2 and 8, for example), this movement of the arm |4 producing a correspond- `I.:

ing step of rotary movement in the table 6.' When the piston 2|] is again withdrawn into the cylinder 2| by exhausting the pivoted end of the cylinder 2| and admitting compressed air to the opposite end of the latter, the arm 4 returns to-` its original position, i. e. that approximately shown in full lines in Figures 2 and 8, leaving the table 6 behind during this movement. The return of the arm |4 is assisted by a spring |4, see Figure 2.

The piston rod. |9 also controls the action of a stop catch 28'for the rotary table 6 through a exible control 29 such as a Bowden cable, one end of this cable being connected to the .stop

catch 28 and the other end to the piston rod I9.

The arrangement and operation of this stop mechanism will be more fully described below` On the upper side of the rotary table 6, and arranged in a ring adjacent the,` periphery of the table, is a plurality of upstanding shoe lasts, generally indicated by the reference 3|, equiangularly spaced about the centre of the table 6. The foot parts of the lasts are uppermost and extend radially inwardly with respect to the rotary table 6. The lasts 3| are made of rigid material such as for example steel.

In order that each last may be adjusted to lit any shoe, within a predetermined range ofsizes, placed thereon and without the use of soft or flexible inflatable parts such 'as cushions or bags, each last is made so that it can be expanded or contracted in the direction of the length A`of its foot part i. e. radially with respect to the rotary table 6. Thus each last is formed, as is clearly shown in Figure 3 for example, in two rigid parts, namely a heel part 32 and a sole or fore part 33, the heel part being rigidly secured to the upper surface of the table 6 at the outer periphery thereof and the sole part 33 being mounted for radial sliding movement on the table 6.

i post 4 and in turn connected To provide' for the radial adjustment of the fore part of each last, a pair of laterally spaced l `parallel guides 34 are iixed to the upper surface of the table for the last and longitudinal flanges' original position, the inward movement of thc `iorepart of the last being effected by pneumatic means, as will be described, and the return movement of the fore part of the last being'eifected byl one or more springs 31 bearing at one end `upon the bottom of a recess 38 in the base of the fore part of the last and at the other end against a fixed abutment 39 on the table 6. v:

At the upper portion the fore part of each.` last has an outwardly directed key portion 4|! adapted .to engage, when the last is closed or contracted, `in a corresponding keyway 4| in the heel part of the last so as to assist in positioning these two parts of the last in proper radial alignment.

Into the heel part 32 of each last is screwed the outer end of a plunger 42 (see Figure 3) extending'horizontally and radially inwardly from the heel part 32 with respect to the table 6, the plunger 42 extending into a corresponding horizontal bore 43 (forming a pneumatic cylinder) provided in the base part 36 of the fore part 33 of the last. The inner end of the plunger 42 is provided witha packing washer 44 and constitutes a piston reciprocable in the cylinder 43.

The plunger 42 is fixed and the cylinder 43 is movable relatively thereto, the movement of the cylinder 43 towards the centre of the rotary table 8 being elected by admitting air under pressure into the cylinder 43 via an axial bore 45 in the plunger 42. The bore 45is connected at itsouter end to an angled passage 46 through the heel part 32 of the last and the outer end of this passage/46 `is connected to the outer end of a pipe 41 supl annular valve 5l] hereinafter called the last- This valve is non-4 expansion control valve. rotatably mounted on the post 4 and is coaxial therewith; it consists of `an externally frustoconical collar which is, as is clearly seen from Figure 6, furnished with a peripheral groove 5| extending less than completely therearound. Near one end the groove 5| communicates with a radial inlet passage 52 formed in the valve 50 and itself communicating at its inner end with a vertical eccentrically located inlet `iziassage 53 through the body of the valve and connected to a vertical ,passage 54 extending through the to a radial inlet passage 55 passing outwardly through the postl and the boss 3 on the pedestal I, this radial passage 5'5 being connected to a compressed air supply line 56. The last-expansion control valve 5|] is also provided with a radial exhaust passage 51 exhausting to the atmosphere via a passage 58 through y the ,post f4, this na'ssa'fgeV 5B -exhausting directly to `Ithe atmosphere.

l The valve housing #i9 iis internally of .i'rustoconical .form so asto .be Aa closelrotatable nt upon :the last-expansion control valve 5l! and is pressed =downwardly upon 4the latter by means of Asprings 5S operating between .a j pair .of pressure plates tl? :and 6| mounted upon a .stud'ti screwed `into the 'upper tend ofthe .pivoting post mand passing freely through the plates 6.0 :and ci, the latter 'of 'which sbfearsupon the top of the valve housing '4.9.

The 4valve housing its isfurnished with'a plurality of .radial ports 63there being Vone goithese ports gforseachllast 3l and 'the unions 43 -for the Vpipes .41 :leading to :.the .lasts being :screwed respectively one into each `of the ports E3. Thus the arrangement :ris such that, fas the :rotary ltable iB (together 'with the valve housing 139) :rotates Yaround the post 't and the .last-expansion .control valve 5u, `each of the portsBS is `for 'a substantial part of .the :rotation ofthe tablezin communication-with the 'peripheral groove 5| in lthe control valve 5u z'so that compressed air iis supplied to the 'cylinder 43 of each of these lasts for expanding the-last in a direction radial to the table-5, whilst eventually (during eachrevolution ofthe table 6') -eachlast cylinder i3 will in turn be cut on from Athe compressed air ysupply and placed in com- `munieationrwith the exhaust passage v5Fl 'through the-control valve'iiil .as willbe clear fromFigure 6, the spring or `springs -31 vof .the exhausted 'last then assuming supremacy and Aclosing or contracting the last.

Conveniently oneposition around the periphery Aof the table 6 is regarded as the loading position or station at which a shoe is placed .on the last. Another station, herein referred to as the "-unloading station is arranged at an angular .distance (measured backwardly of the rotational direction of movement of the table 6) from the loading station, and .the'arrangement is such that as each ,last reaches the unloading station it will vbe :contracted and will remain contracted as it .passes vto and reaches the loading station, the Ylast only being v1re-.expanded on leaving this latter station. Thus, as .clearly vshown-in Figurez and diagrammatically illustrated in Figure 8, thelasts 31 are all expanded .except when they -are ,disposed at and between the unloading and loading stations, the .unloading station being marked in the .drawings bythe letters ULS and the loading station by the letters LS. It is therefore upon Athe .angular spacing of the .loading and .unloade ing .stations that the .peripheral length of the .groove 5l Vin the last-eizpansion control valve :5B

depends.

Preferably the'loading station is at the ,centre .oi the Afront of the machine and, assuming that the table 5 is rotating in a clockwise direction as vin 'the machine illustrated in top plan in the drawings, the unloading station is to the right of the "loading station, there `conveniently being Atour lasts between the loading and unloading stations including `those at these two stations.

The table t is adapted to bring each last in turn to `the loading'station'LS and then to remain 'stationary for an interval 'to permit the loading of the last. Simultaneously a last at the 'unloading :station may be unloaded and certain other operations 'may be `performed on .shoes on the lasts yat other 'positions around the table. When a loaded last moves from the loading sta- A.tionxit -is expanded .to fill the shoe thereonand lremains so .expanded until it has almost completed its circular path from the :loading to the '8 unloading stations, :the .last .then being permitted to .contract so las to free the `shoe for removal .from the last at the unloading station and the last then remaining contracted until it reaches and subsequently leaves `the loading station.

it will be understood that .it vis not essential that all lshoes operated upon successively .need be of the same size forthe lasts .are expanded by yielding pressure and are automatically selfiaccommcdating to the shoes' .and only expand until the shoes are adequately gripped .by the lasts, the normal resistance ofthe shoes to stretch being sufficient to retain the lasts against further automatic expansion.

Means are provided for locking :and .subsequently releasing the rotary table Vteach time it :brings a .last into .the loading station. .In the arrangement `shown in the drawings this locking of the table .is effected by a vertically disposed locking bolt E34 (Figures .1, 3 .and 8) which is adapted to engage at its upper .end in .any one of a series of holes e5 provided in the ange of the rim il of the rotary table 6, there beingone of these holes below and for each of the .lasts 3l andthe arrangement being such that the bolt '.64 will, when the last is brought into the loading station, engage in a hole inthe table 6 to lock the latter temporarily against rotation, the bolt subsequently being withdrawn Yto release the table for one further step in its rotary movement under the action of the driving varm Ill.

The bolt 6d is supported verticallyadjacent the periphery of the table il at the front thereof below the loading station, the bolt being'carried inV a pedestal @6 disposed below `the table and resting upon the ground. The pedestal yil .is conveniently independent oi :the central `pedestal i of the machine although it could, if desired, be associated therewith.

The bolt Se is carried at its upper end in a bearing Si' in the pedestal and `adjacentiits lower end in a bearing ed on a cross member 5.9 of. the same pedestal. The .downward vmovement of the bolt t@ is assisted by a spring It mounted on the bolt and engaging at one end of thefbearing 5"! and. at the other end with a collar 1I adiustably fixed to the bolt. The extent'of 1the downward movement of the bolt 'is controlled by a collar i2 which may `be adjustable on the bolt and which is adapted to abut against the bean ing 63.

The lowerend of the bolt te is conected tothe upper end of the piston rod 'i3 of a double-acting looking piston iii mounted for vertical reciprocation ina vertically disposed pneumatic 'locking cylinder E5 mounted on the base l@ of the pedestal et. ribeupper end oi the cylinder l5 is alter nately supplied with compressed air and ex hausted via a pipe line "i8 and the lower end is alternately supplied with compressed air ander:- hausted via a pipe line 'il' (see Figures `1 and 8 for example). When pressure is applied to the upper side of 'the piston ifi the bolt 54 is withdrawn whilst when pressure is applied to the under side of the piston 'ifi the'bolti'i is forced upwardly (against the action of the spring 1Q) to engage in one of the holes 55 in the table 5 temporarily to lock the latter against rotation.

The pipe vlines 'H and 'it are respectively ccnvnected to the pipe lines 2E and 24 ypreviously de scribed in referring to the pneumatic cylinder 2i used in driving the table, these connections being diagrammatically illustrated in Figure 3.

To ensure that the table t will vcome to rest with one of the .holes opposite thebolt E4 each time the table reaches the end of one of itsro-v of a lever pivoted at 'I9 to the upper part of the pedestal 66 for swinging movement in a vertical plane, the lever 28 being provided with a nose 89 (Figures 1 and 3) inclined on its underside 8l and having a notch 82 in its upper side, this notch being adapted for successive engagement with a series of cylindrical projections or stop pins 83` projecting radially at uniform intervals from the outer surface of the rim I l of the table 6. These radial stop pins are conveniently in the form of socket screws and one of these stop pins is provided for each of the lasts 3| on the rotary table 6 and in such a position that, when one of the, pins 83 is engaged in the notch 82 of the catch lever 28, the corresponding hole 65 in the rim Ilv of the table is in register with the bolt 64.

Thestop catch lever 28 is urged upwardly by a spring 88 (Figure 1) but is adapted periodically to be depressed to disengage it from the stop pins 83, this depression of the stop lever 28 being effected by, means of the inner cable of the Bow- Cil den wire 29 previously described. The said inner cable isfoperated from the table driving piston 20 through a double-ended lever 30 (Figure 8), the arrangement being such that the catch lever 28 serves.temporarily to engage a stop pin 83 and holdthe table stationary at `the end of each rotary step until the bolt 64 has engaged a hole 65 in thetable and locked the table in a stationary condition. However, during the latter part of the return strokes of the driving piston 2U and the driving arm I4 (after the table has been locked, bythe bolt 64) the Bowden wire 29 withdraws the stop catch 28 to the position shown in Figures Vl and 8 thus releasing the table for its next forward step as soon as the bolt 64 is withdrawn. By providing for appropriate lost motion in the connection between the cable 29 and the stop catch lever 28 it is possible to ensure that the withdrawal of the stop catch lever 28 will notv be eiected, as described, until towards the latter part of the return stroke'of the driving arm Msi. e. until a moment just preceding the next advance movement of the table.

After. its withdrawal, the stop catch lever 28 is retainedtemporarily in the withdrawn position by means of a biased, e. g. weighted or spring loaded, trip lever 84, this withholding of l the catch; lever 28 permitting the table 6 to rotate, after the withdrawal of the bolt 64, sufliciently to clear .the stop pin 83 last engaged with the catch lever 28 and lying immediately over the notch .82 in this lever, from this position.

The trip lever 84 is pivoted at 85 to the pedestal 68 so as always to tend to move into a position in which a lip 81 at the upper end of the trip lever 484-is engaged over the pointed free end 8B of the stop catch 28. Thus as soon as the stop catch 28 is withdrawn to the position shown in Figure 1, the trip lever 84 swings into position to lock the stop catch lever 28 inthis withdrawn condition.

When the trip lever 84 is in the said stop catch lever locking position, the upper end of the trip lever projects, as shown in Figure 1, above the nose of the stop catch 28 into the path of the oncoming stop pins 83 so that, shortly after a stop pin 83 has passed forwardly from the vicinity of the notch 82 in the stop catch lever 28, this stop Vpin strikes the upper end of the trip lever 84`and causes this lever to swing-upon its pivot to re- 10 leasethe stop catch lever 28 and so permit the same to be moved upwardly by its return spring 88 into position to receive in its notch 82 the succeeding stop pin 83, thereby to arrest the rotation of the table 6 with a hole 65 therein in alignment with the bolt 64.

At the loading station the table 6 is steadied and supported from below by rollers 89 and 98 supported in bearings at the upper end ofthe pedestal 66, these rollers bearing on the inturned flange of the rim Il of the table. The table may be similarly supported by other rollers at other positions if desired, there preferably being at least one such roller 9| at eachof the processing or operating stations subsequently re,

ferred to and as indicated in Figure 4.

At one or more appropriate positions around the table is or are arranged one or more processing or operating stations at which manufacturing operations or on the shoes as they are successively presented to this station or stations. Thus in the machine illustrated in the drawings two processing stations are provided, these stations being shown in plan in Figure 2 and also diagrammatically in Figure 8. A side elevation of one oi the stations is also shown in Figure 7.

For convenience the two processing stations are marked in Figures 2 and 8 as stations A and B; these stations are arranged approximately diametrically opposite one another at the periphery of the rotary table 8 and approximately each at 90 degrees to the loading stations,` the unloading station being located between the processing station B and the loading station LS.

The machine shown in the drawings: is illustrated, in Figure 7 in particular, as being employed in the application of a heel piece 93 and a through-sole 94 to the bottom of a shoe 95, the heel piece 93 being applied to the `shoe `before the through-sole 94 is fixed thereto. With such an arrangement the shoe is placed on a last by an operator at the loading station, the last is automatically expanded as it leavesthe loading station, an adhesive is applied by an operator either to the heel piece 93 or to the heel part of the bottom of the shoe or to both these parts prior to the shoe reaching therst processing station A; Vthen the operator applies the heel piece to the heel part of the bottom of the shoe and processing station A serves to apply pressure to the heel piece and ensure that the latter is properly adhered to the bottom of the shoe. The shoe then continues in its circular movement about the axis of the rotarytable and-before it reaches the processing stationB an operator applies adhesive to the sole and shank portions of the bottom of the shoe and the upper surface of the heel piece 9 3 or to the under surfaceof the through-sole 94 or to both the shoe and the through-sole and then applies the latter to the bottom of the shoe. When the shoe reaches the processing station B pressure is applied to the through-sole at this station and the aflixinglof thethrough-sole to the shoe is completed. The shoe now passes to the Aunloading station where it is removed from its last, the latter having been contracted before reaching the unloading station so as to free lthe shoe for removal. i

It will be understood that other processing steps may be effected between the loading and unloading stations besides those mentioned, and that the order of effecting even the steps ofjproc- -essing described canbe reversed if desired;` For steps may be carried outl assis-is example, in addition to the processing steps specically above described bung or scouring, grinding or trimming operations may be performed upon the shoe.

Assuming that only two processing stations are employed and that they are for the purposes referred to above, then conveniently the station A Vis constructed as follows. Upon a base plate 96 -'nx/'ed to the floor or carried by the base or other part of the main pedestal of the machine isian upstanding pillar 91 at the upper end oi which is `iixed ya pneumatic double-acting cylinder 98 having its axis vertically disposed. In this cylinder is a double-acting piston 99 reciprocable Vin the cylinder alternately in opposite directions under the pressure kof compressed air admitted alternately to opposite ends of the cylind'e'r via air lines |00 and |0| (see Figure 8), these vlines alternately being used for the supply of `air to, and for the exhausting of air from, their respective ends of the cylinder 98.

The piston 99 has a vertically disposed piston rod |02 guided by an appropriate bracket |03 and carrying at its lower end a pressure pad |04 by which a heel piece, such as 03, can be pressed Aupon the bottom of the shoe as hereinbefore described. The bracket |03 may be adapted to ride up and down the pillar 91 and may automatically control a valve |05 for pad inating purposes when the pressure Apad |04 is in the form of an inflatable cushion, as 4it may be, or when the processing station used at A is of the type illustratedin the drawings as being located at the station B. Thus by providing the valve |05 at the station A as well as Aproviding a similar valve at station B, the two stations may be interchanged if desired. Air is led to the pad -inilating valve |05 by means of an air line |06.

In the main the processing station B is similar 'to the station A and includes a rigid vertical pillar |01 on which is supported a vertically disposed hydraulic cylinder |08 having a double acting piston |09 reciprocably mounted therein, the cylinder |08 being alternately supplied with compressed air and exhausted at opposite ends through pipe lines |I and II respectively connected tothe pipe lines |0| and |08. To the lower end of the piston rod I I2 of the piston I I9 is fixed a pressure pad or cushion IIS (see Figure '1) comprising a transverse back plate IM and a suitably shaped inflatable envelope adapted to engage the through-sole 9d (when the 4said pad or cushion I3 is caused to descend) and so to cause the through-sole closely yto iol'- low the contour of the sole and heel of the shoe 95 located under the pad or cushion.

v The pad or cushion I|3 is Vpreferably pneumatically inated, compressed air for this purpose being supplied to the pad or cushion via a ilexible air line I|6 connected to a pad inflating valve |05 in lturn connected by an air supply line to the air line 56 which is vin turn connected to the main compressed air supply line |18.

The pressure pad |I3 is guided in its upward and downward movement by ra bracket lI I 9 on a carriage Vadapted to ride up and down the A'pillar |01 as the piston ||2 rises and falls, and upon the carriage |20 is adjustably mounted a trip member |2I, having a roller |22 at thelower o end thereof, this roller being adapted to operate 'atrigger |23 for actuating a plunger or equivallent device |24 which alternately serves to place the inflatable pad ||3 in communication with the airline I |1hfor inflating vthe pad and in com'- aim''n'iicatio'n with the atmosphere -for exhausting 12 the pad, the arrangement being that when the pad has engaged the through-sole on the shoe the pad is inflated so that the pressure on the through-sole is increased to eiect a close union of the through-sole with the shoe whilst, when the pad ||3 is withdrawn rom the shoe, the

pad is automatically deflated lat least partially. If the pad |04 of station A is of an inflatable form its inflation and deiiation may be effected in the same way Yas that of the pad H3.

The 'operation of the pistons e8 and les of the stations A and B is controlled by the operation of a pair of rotary control valves |25 and |26 arranged in an air line |21 from v'which branch the air lines |08 Yand |0| and which is also connected between the valves |25 and |25 by a line |28, to the main compressed air supply line H8. At its ends the line |21 is connected to an exhaust line |29.

The rotary vaives |25 and IZ are both twoway valves, the valve |25 being adapted to place they air line |00` alternatively either in communication with'the exhaust line |29 or the compressed air supply line |I8 via the lines |21 and |28. Similarly the valve |26 is adapted to place the air line I|| either in communication with the exhaust line |23 or with the supply line IIS, and the two rotary valves |25 and |26 are so linked and operated (as will hereinafter be described) that both of the cylinders S8 and |88 are supplied simultaneously with compressed air at the upper ends thereof and both are exhausted siinul-.

taneously. 'lit will however be seen that when the upper end of each of the cylinders 88 and |08 is being exhausted, the other end of each such cylinder is being supplied with compressed air, and vice Versa so that each time the two valves |25 and |25 are operated the pistons 95 and |09 reverse their direction of movement.l

Operation of the valves |25 and |'2e is eiiected in timed relation with the operation of the bolt 64 so that the 'pistons 99 and |09 of the stations A and B do not descend until a last is located and locked below each of them and so that both these pistons ascend at least partially before the rotary 'table 6 commences 'to advance after one of its periods of rest. This interconnection of the bolt 6d and the valves |25 and |26 is eifected by means of 'a Alever I3i| (see Figures 1, 3 and 8) pivoted at one end to a vertical member |3I of the pedestal 66, the lever |30 beingconnected at theother end 'to one end of a link |32 having its other end Vpivot'ally connected to a vertical link |33 of a parallel linkage comprising the said link |33 and a pair of lever arms |34 and |35 which Vare lrespectively pivo'tally connected at one end `t`o 'the link |33 and iixed atthe other end to the spindles of 'the valves |25 and |26.

The lever |38 is connected `intermediate its ends to the piston rod 13 of the piston 'is which Aoperates the bolt 61d. Thus as the piston 'iii v'ascends to operate the bolt 64 for locking the 'table 6 'against rotation, the rotary valves |25 'and |26 are both turned in an anti-clockwise direction as these valves are seen in Figures l and 8, whereas when the bolt 64 is withdrawn by the piston 'le the rotary valves |25 and |26 are turned in'th'e opposite sense, i. e. in a clockwise direction into the dash and dot position indicated in Figure 1.

When the lever arms V|250 and are moved fto their uppermost positions (,full line positions -Figure V1) Ythe rotary 'valves |25 and |26 occupy the 'position shown-'in AVVFigure 8 so that Vthe undersides of the pistons 99 and |99 of the cylinders 98 and |98 are open to exhaust and cut oif from the compressed air supply.` On the other hand the upper sides of the pistons 99 and |99 are cut oi from exhaust and open to the compressed air supply so that the pistons 99 and |99, and the parts associated therewith, are caused to descend.

. When the position of the valves |25 and |29 is reversed by the clockwise Vmovement of the lever arms |34 and |35 to the dot-and-dash .position, the aforementioned state of alairs is reversed and the lower sides of the pistons 99 and |99 are opened to the compressed air supply line and the upperfsides of these pistons are open to exhaust so that the pistons 99 and |99 will ascend.

` It will thus be apparent that the pressure pads |94 and II3 are automatically brought into oper-.-

ation and withdrawn from operation respectively on the locking of the table 9 against rotation and before the latter commences again to rotate, the mechanism being timed so that the bolt 94 first locks the table beforethe pressure pads |94 and I|3 make a full descent and so that these parts commence their ascent before the table is unlocked for rotation.

Pressure gauges |31, |38 and |39 are preferably provided in the pipe lines 56, ||1 and II8 respectively. Similar gauges I49 and |4| maybe provided in the pipe lines |9| and The 'admission of compressed air and the reversal of its iiow through parts of the circuit as above described may be effected by a manually operated valve e. g. a foot operated valve' but is preferably, as indicated in Figure 8 of the drawings, automatically controlled, there being'a main valve by which the compressed air may be cut oi and the whole apparatus brought to rest when desired. This main control valve is in the pipe line I8 and is indicated at |42 in Figure 8, the valve being on a control panel or plate |43 conveniently supported at the front of the machine on the pedestal 99 as shown in Figure 3.

The automatic control of the apparatus is effected by means of the control valve 21 previously referred to, which is reciprocable in the pneumatic chest or cylinder 26. Between the piston ends |44 and |45 of the valve 21 the cylinder 29 com` municates with the compressed air supply pipe I |8 so that air is constantly admitted to the cylinder 29 between the pistons |44 and |45. When, as shown in Figure 8, the valve 21 occupies the right hand position in the cylinder 29, the air line 24 of the cylinder 2| controlling the rotation of the table is cut 01T (as shown by one of a pair of collars 21', 21" on the valve 21), from the compressed air supply line I 8 placed in communica: tion with the exhaust passage 24 whilst the line 25 to the cylinder 2| is opened to the line I I8 and cuto from the exhaust passage 25 so that the piston 29 in `the cylinder 2| is returned to its normal position in which the table driving arm I4 -is at the beginning of its stroke ready to drive the table. At this stage the table.9 is locked against rotation, compressed air having been admitted from the line 25 via the line 11 to the locking bolt piston cylinder sp as to cause the bolt 94 lto rise and lock the table 9 against rotation. 4

In moving to its locking position in this way, the bolt 94 appropriately sets 4the rotary valves and |26 so that compresesd air may be supplied to the upper ends of the cylinders 99 and line |98 v ia the air lines |9| and |'I9 and the main supply line I8. f y

A pair of cylinders |49 and 41 are provided in tandem, the cylinder |49 being a pneumatic reversing cylinder and the cylinder |41 being a hydraulic dashpot containing a hydraulic liquid such as oil. A piston I 48 is reciprocably mounted in the reversing cylinder |49 and a similar piston |49 is reciprocably mounted in the dashpot cylinder |41, these two pistons being joined together by a common piston rod |59 furnished between its ends with a collar |5| which may be adjustable along the rod.

The twoopposite ends of the reversing cylinder |45 are connected respectively by `pipe lines v|52 and |53 to the air lines 25 and 24 so that, as the control valve 21 reciprocates in its cylinder or chest 29, air is alternately supplied under pressure to the opposite ends of the cylinder |49 Whilst the cylinder is exhausted at the other end. Con-v sequently the piston |48 is caused to .reciprocate in its cylinder and carries with it the piston rod |59, the collar |5| and the piston |49. The piston |49, operating in the dashpot cylinder |41, acts as a damper to control the rate of movement of the rod |59, the cylinder |41 having its 'opposite ends connected by a closed by-pass |54 which includes a regulatable by which the rate of transfer 'of oil from 'one end of the cylinder |41 to the other' can be adjusted to the desired value. A f f With the control valve 21 in the position shown in Figure 8, air is admitted from the Yline 25`via the line |53 to the'leit hand end of the cylinder |49 to causethe collar 5| to move to the right as these parts lare seen in Figure 8. However, when the control valve 21 `is moved to the left so asto cut off the air line 25 from the supply line I I8 and place the latter in communication with the air line 24, then the bolt 94 is withdrawn to free the table 9 forrotation andthe valves |25 and |29 are reversed so that the pistons 99 and |99`Hare caused to rise in their cylinders 98 and |08. -Then the piston 29 operating the table driving arm-|4 is caused to make a driving stroke to rotateft'he table, the stop catch lever 28 having previously been withdrawn but subsequently being aut matically re-set for arresting the rotation of the table 6, this re-setting being effected by one of striking the trip lever 84 so as the stop pins 83 to release the stop catch lever 28 to enable it' to move into position to engage'the next stop pin 83 as previously described. v Also air is admitted under pressure from the line 24 to the right hand end ofthe cylinder-|4`8 which causes the piston |48 to move to theleft and to carry with it the piston rod |59 and the collar I5I, the rate of movement of the collarA |5| being controlled by the rate of circulation ofyoil in the cylinder |41 and ley-pass |54 which is in accordance with the setting of the valve |55.

The operation of the control valve 2'|` 4to effect the reversal of theair flow periodically is brought about by the action of the collar I5| 'as it reciprocates between the two cylinders |49 and |41, the collar |5| being adapted to strike, as it moves to the right, a plunger |56 in a smallcylinder |51 so as to force air or oil under pressure through a' line |58 into the right hand end (as seen'in Figure 8) of the cylinder or chest 26 to cause the control valve 21 to move to the left, whilst on the movement of the collar |5| to the leftit is' adapted to strike a plunger |59 operating'in a small cylinder |69 to force air or oil through a I6I into the left hand end of the cylinder or or bleed valve |55 l 1?'5 chest 261. to move'the valve 21 to the righti. e. into the position shown in Figure 8. Thus; so long as the control valve |42 is open, thelmachine continues to operate. andthe. table E. advances.

stepzby step, being locked at the end of every rotational step' to enable; av shoe to be. placedron' the contracted last at. the loading station and to enable the; finishedv shoev to be removed'fron'i` its. contractedl last at the loading station. whilst r'nanufacturingy operations are carried out at. the. processing stations.

Immediately'the table commences tornovev from.

a stationary position the last at theloading sta-l tion is" expanded'yieldlngly so as to iill the length of' the shoe placed thereon, full expansion` of the last beingdetermined by the size ofthe shoe.

i We claim.:

Y l.. ifi-machine` for use: in the manufacture of shoes, such machine comprising a plurality of mutually spaced lasts each adapted to receive a shoe to be operated on; at least two relatively movable parts forming each last so that each lastv isexpansible in the direction of its length whereby' it can be adapted to nt shoes of varying sizes last inturnl after therloading thereof to adjustl the-length. of the last toV suit. the size of shoe placed thereon; a rotary valve for regulatingY the supply of pressure fluid toA said fluid pressiu'ev operated means for expanding the lasts; a rotatingV part of said valve connected with said table to rotate therewith and having outlet orifices for communication with said iiuid pressureoperated expansion means of each last;V a' stationary part of said valveA having means fory closing at least one of said outlet orifices, said rotating part and said'. stationary partftherebyV cc-operating to determine which of said last ex pansion means shall receive pressurey fluid to exf pand the lasts'and the period of supply of such pressure fluid supply to the last; and meansvfcr automatically contracting each of said lasts as the said table completes-each revolutionwhere by the'shce on the last may be. removed there-A from.

2. -A machine for use in the manufacture of shoes, such machine comprising a plurality of mutually spaced lasts eachy adapted to receive ashoe to'be operated on; atleast two relatively movable-parts formingeach last so that each last.

is-expansible in the direction of its length whereby it can be adapted to tshoes ofvarying, sizes within a predeterminedrange of sizes; a rotary tablefor carrying said mutually spaced lasts,sa'id rotary table vbeing adapted. to be.v rotationallyfad vancedstepby step, saidlasts' being' arranged atlequi-angularly spaced intervals around the axisof rotation oi the table; fluid pressure op" eratedmeans--for causing said step by steprotary advancement of said rotary table; fluid Vpressureoperated means fory automatically expanding each last in turn after the loading thereof: to adjust the length of the" last to suit the sizev of shoe placed thereon; a rotary valve for regulating the supply of pressure fluid to said fluid pressure. operated-.means for expandinglthe lasts;v ,an rotating: parti orsaid valve; connected with said table. to rotatetherewith,` and. having; outlet orifices for communication'Y withsaid. iiuid;

pressure operated expansion means of each last;

a stationary'part of said valve. having. means for closing at. least one. of said outlet orices;. said' rotating part: and. said stationary part. thereby co-operating to determine which of' said last expansion means shall receive pressure fluid to ex pand the lasts andthe period of supply of such pressure. fluid supply to the lasts; and'. atA least lone. spring for urging4 oneof said relativelyfmov-V able partsof. each last towards the otherof such` parts as the said table completes each revolution;`

whereby thek shoe on the last may be removed therefrom.

3. A machine' for use in the; manufacture of shoes, such machine comprising a rotary table; a plurality of mutually spaced lasts on said table and each adapted to receive a shoe to beA op-V erated on;` each said last comprising: tworelativelyv movable parts so as to bev expansible" in the direction of its length; fluid pressure operated means for causingv step by step' rotary' advancement of said rotary table; automatic-I means for locking, said table in a stationaryV condition at theA end of each stepv in its move( ment, and for then releasing said tablev for further movement; iiuid pressure operated means for automatically expanding. each. last inturn after the loading thereof to adjust the. lengthl of the last to suit the size of shoe placed there on; a rotary valve for regulating: the' supply of pressure fluid tc said fluid pressure operated means for expanding' the lasts; a` rotating partA of said: valve,- being. connected with said tableto rotate therewith and having outletv orifices`V for communication with said fluid pressure operated expansion means of each last and a sta-l tionary part of said valvehavingmeansfor clos-- ing at least one of said outletv orices; said ro tating and stationary valve partsn thereby' cooperating to determine which of said last ex pansion means-shall receive pressure fluid toeX- pand the lasts and the period of supplyof such pressure fluid supply to the lasts; and at least one spring for urging one of said relatively movable parts of each last tovvardsthe` other as eachY last returns to an unloading station, wherebyfthe` shoe on the last may be removed-therefrom.

li. A machine for use4 in the manufacture oi. shoes,- such machine comprising a traversable: carrier; a plurality of mutually spaced lastsJ mounted on said carrier and each adaptedto re,'- y ceive. a shoe to be. operated on;y each said lastv i comprising two parts, one DfWhiCh-isXed toisaid; carrier and the other of which= is movable rela'-` tively tothe'flrst'part thereby to ena'blethe'la'stY to be expanded in the direction ofitslength;

fluid pressure operated means for traversingc saidV carrier intermittently to move .said lastssucces-1 sivelyl from and then back to a loading. statiom.

fluid pressure operated means for automatically expanding each last. in turnY after the' loading thereof tov adjust' the length of thel'a'st toisuit" thesize cf'shoe placed thereon, and meansfo'r' automatically contracting each of said lasts vas it returns to said loading station whereby the' shoe may be removed therefrom.

5'. A machine for use in the manufacture-of shoes, such machine comprising arotarytable,

a plurality of mutually spaced lasts arranged-' around.. theV perimeter of said table and each adapted' to receive a shoe4 to be operated. on; each such last; comprisingat least `two parts; one of.. which; istflxe'dl to. thesaid'. tablel andtheV other 17 of which is movable relatively to the latter thereby to enable the last to be expanded or contracted in the direction of its length; means for advancing the said table rotationally step by step thereby `to bear said lasts successively around a closed circuit from and back to a loading station; fluid pressure operated means for operating said table advancing means; fluid pressure operated means for automatically expanding each of said lasts in turn after the loading thereof to adjust the length of the last to suit the size of shoe placed thereon; and means for automatically contracting each of said lasts as it returns to said loading station whereby the shoe on said last may be removed therefrom.

6. A machine for use in the manufacture of shoes, such machine comprising a support; a horizontal rotary table on said support; a plurality of lasts on said table and equiangularly spaced around the axis of rotation thereof; each of said lasts being formed in at least two parts movable relatively to one another in the direction of the length of the last; fluid-pressure-operable last expansion means on each of said lasts for separating the said parts thereof thereby to expand the last; uid-pressure-operable means for advancing said rotary table step by step to bring the said lasts successively to a loading position; valve means, actuatable by rotation of the said table, to admit pressure fluid successively to the fluid-pressure-operable means of the said lasts to expand the latter as they leave the said loading position, and also adapted, prior to the return of each last to the said loading position, to relieve the said fiuid-pressure-operable last expansion means of the last of fluid pressure; means for closing the said last parts together when the said fluid-pressure-operable last expansion means are relieved of fluid pressure; fluid-pressure-operable table-locking means for temporarily locking the said rotary table against rotation at the end of each rotational advancement thereof; and control valve means for effecting the application of table-advancing fluid pressure to the said table-advancing fluid-pressureoperable means thereby rotationally to advance the table and for subsequently relieving such means of said table-advancing pressure after each rotational advancement of the table, and for also controlling, in appropriate sequence, the application of fluid pressure to, and then the removal of such pressure from, the said fluid-pressure-operable table-locking means, whereby the said rotary table is advanced rotationally step by step and temporarily locked `against rotation after each such advancement step.

7. A machine for use in the manufacture of shoes, such machine comprising a support; a horizontal rotary. table on said support; a plurality of lasts on said table and equiangularly' spaced around the axis of rotation thereof; said lasts each being formed in at least two parts movable relatively to one another in the direction of the length of the last; huid operable piston and cylinder-actuated last expansion means on each of said lasts for separating the said parts thereof thereby to expand the last; fluid pressure operable piston and cylinder means for rotationally advancing said rotary table step by step to bring said lasts successively to a loading position; means for temporarily locking said table against rotation after each rotary step of the table; fluid pressure actuated piston and cylinder means for operating the said table-locking means; valve means. actuatable by rotation of said table, to

admit pressure fluid successively to the said piston and cylinder last expansion means of the lasts to expand' the lasts as they leave the said loadingposition, and also adapted, prior to the return of each of the lasts to the said loading position; to interrupt the flow of pressure fluid to said piston and cylinder last expansion means of the last and to relieve such means of fluid pressure; means for closing the said last parts together when the said piston and cylinder means thereof are relieved of fluid pressure; and control valve means for alternately effecting the application of table-advancing fluid pressure to the said table-rotating piston and cylinder means for rotationally advancing the table intermittently, and for relieving such piston and cylinder means of saidtable-advancing pressure after each rotational advancement step of the table, such valve means also being adapted to control the application of fluid pressure to, and then the removal of such fluid pressure from, the said fluid pressure operable piston and cylinder means of saidtable-locking means,` whereby the said rotary table is advanced rotationally step by step and locked temporarily against rotation after each such advancement step.

8. A machine for use in the manufacture of shoes, such machine comprising a support; a horizontal rotary table on said support; a plurality of lasts on said table and equiangularly spaced around the axis of rotation thereof; said lasts each being formed in at least two parts movable relatively to one another in the direc- 'Y tion of' the length of the last; fluid operable piston and cylinder-actuated last expansion means on each of said lasts for separating the said parts thereof thereby to expand the last; a reciprocable one-way-acting driving arm for rotationally advancing said rotary table step by step to bring the said lasts successively to a loading station; fluid pressure operable double-acting piston and 'cylinder means for reciprocating said driving arm; valve means, actuatable by rotation of said table, to admit pressure fluid Asuccessively to the said piston and cylinder lastexpansion means of the lasts to expand theV lasts as they leave the said loading position, and also adapted, prior to .the return of each of `the lasts to the said loading position, to interrupt the flow of pressure fluid to said piston and cylinder last-expansion means of the last and torelieve such means of `fluid pressure; spring means for closing the said last parts together when the said piston and cylinder means thereof are relieved of last expanding fluid pressiu'e; locking means for temporarily locking the said rotary table againstrotation at the end of -each rotational advancement step thereof; fluid pressure-operable piston and cylinder means for actuating the said table-locking means; and control valve means for effecting' the application of fluid pressure alternately to the opposite ends ofthe cylinder of the said double-acting piston and cylinder-driving-armreciprocating means alternately to cause the said arm to rotate the table and then to return to its initial position, and for also effecting the alternate application of table-locking fluid pressure to the saidrfluid pressure operable piston and cylinder mea-ns of the said table-locking means thereby to effect the lockingof the table after each advancement step and then the removal of such table-locking pressure to permit the unlocking of the table preparatory to each advancement step.

9, A machine according to claim 8, wherein the said control valve means comprises a valve chest having a pressure fluid inlet, a pair of main ports communicating respectively with opposite ends of the cylinder of the said double-acting fiuid pressure operable piston and cylinder' means lor operating the said reciproca-table driving arm of the table-advancing means, and a pair of exhaust ports; a double ended control valve reciprocable in the said valve chest and adapted, when in either of its end positions in the said chest, to place'one of the said main ports in communication with the said pressure fluid inlet and to isolate such inlet port from said exhaust ports of the chest whilst simultaneously cutting the other of said main ports oi from the said fluid pressure supply and opening such main port t one of the said exhaust ports; means for reciprocating said valve whereby the opposite ends of said cylinder are alternately placed in communication with the pressure uid inlet of the said valve chest whereby the said piston is alternately moved in opposite directions, first in one direction to efect the rotation or" the said table by the said one-way-acting driving arm and then in the opposite direction to effect the release ofthe table from said driving arm and the return of the latter to its original position.

l0. A machine according to claim 9, wherein the said fluid pressure operable piston and cylinder means for actuating the said table locking means comprise a cylinder and a double-acting piston therein, and the opposite ends of the said cylinder are respectively in communication one with each of the said main ports of the said valve chest whereby the said table locking means are alternately operated to lock the table and to re lease it.

1l. Aymachine according to claim l0, wherein the said table-locking means comprises a bolt adapted to engage in any one of a series of rperipherally spaced holes in the said table, such bolt being actuatable by the double-acting piston of the said uid pressure operable piston and cylinder means for actuating the table locking means.

12. A machine according to claim 11, including a stop catch arranged adjacent to the said rotary table; peripherally spaced stops on said table for co-operation with the said stop catch; spring means for operating said stop catch for arresting the rotation of the said rotary table prior t0 the table being locked by the said locking bolt and means for Voperating the said stop catch from the piston of the said table driving arm-reciprocating piston and cylinder means lfor subsequently disengaging such stop catch from 'said spaced stops to free the rotary table for further rotational movement when released by the said locking bolt.

13. A machine according to claim 12, including a trip lever for temporarily retaining the said stop catch in an in-operative position, such trip lever being adapted for operation, to release the said stop catch, by one of the said stops on the table as the latter rotates.

14. A machine according to claim 13, includ- 20 ing pressure fluid operated reversing means for automatically reversing the movement of the said double-ended valve in the valve chest of the said control valve means.

v15. A machine according to claim 14, includ-4 ing at least one processing station arranged adjacent the periphery of the said rotary table and angularly spaced from the said loading position, said processing station including a processing element adapted to act upon an article of footwear on a last on the said table and registered with the said element when the table is stationary, uid operated means for moving said processing element into and out of engagement with the said article of footwear, and valve means, controlled from the ysaid locking bolt operating piston, for regulating the flow of pressure fluid for operating the said uid operated processing elcment-moving means.

16. A machine according to claim 15, wherein Athe said processing element-moving means comprises a cylinder; a double-acting piston slidable in said cylinder; means for supplying pressure fluid alternately to opposite sides of said piston; and an inflatable pad carried by said piston and. constituting the said processing element: and wherein `are also provided means for supplying pressure fluid t0 the said inflatable pad, and valve means, controlled by said last-named piston, for regulating the supply of pressure uid to said pad and the exhausting of the latter in proper sequence with the operation of the said table and processing element-moving means.

17. A machine according to claim 8 includingl at least one processing station arranged adjacent the periphery of the said rotary table and angularly spaced from the said loading position, said processing station including a processing element adapted to act upon an article of footwear on a last on the said table and registered with the said element when the table is stationary, fluid operated means for moving said processing element into and out of engagement with the said article of footwear, and valve means, controlled by the said fluid pressure operable piston and cylinder means for actuating said table-locking means, for regulating the flow of pressure fluid for operating ,the said fluid operated processing element- .moving means.

JACK WEBER. THOMAS PARKINSON CHARNLEY.

REFERENCES CITED The following references are of record in the 

